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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1989.tb01940.x/epdf
Last checked: 10/02/2015
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| Publication Type:
| Refereed |
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| Author(s): | Gonzalez, B.;
Boucaud, J.;
Salette, J.;
Langlois, J.;
Duyme, M. |
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| Author Affiliation: | Station of Agronomy, INRA, Labortory of Physiology and Biochemistry, University, Caen, France |
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| Title: | Changes in Stubble Carbohydrate Content During Regrowth of Defoliated Perennial Ryegrass (Lolium perenne L.) on Two Nitrogen Levels |
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| Source: | Grass and Forage Science. Vol. 44, No. 4, December 1989, p. 411-415. |
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| Publishing Information: | Oxford, Blackwell Scientific Publications |
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| Keywords: | TIC Keywords: Carbohydrates; Regrowth; Lolium perenne; Nitrogen
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| Abstract/Contents: | "Changes in stubble carbohydrate content during the regrowth of ryegrass (Lolium perenne L.) grown under hydroponic conditions at two nitrogen levels were studied as a function of time by high-performance liquid chromatography. Experimental data showed that regrowth at a non-limiting nitrogen level (1.0 mol m-3 NH4NO3) involved two different physiological periods. The first occurred during the first 6 d and was characterized by the mobilization of 60 to 90% of the soluble carbohydrates (i.e. glucose, fructose, sucrose, oligofructans and polyfructans). During the second period (6-28 d of regrowth) carbohydrate contents rose to the values observed prior to cutting (20% of dry matter at the 28th d of regrowth). The effect of low nitrogen conditions (0.2 mol m-3 NH4NO3) was observed only during the second phase. Plants regrown in a nitrogen-starved medium accumulated 2.3-fold more polyfructans than plants regrown in a non-limiting nitrogen medium. Their fructose and glucose contents remained at 2% of dry matter from the end of the first phase of mobilization. The experimental results are interpreted and discussed in terms of the existence of two distinct fructan synthetic pathways." |
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| Language: | English |
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| References: | 27 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gonzalez, B., J. Boucaud, J. Salette, J. Langlois, and M. Duyme. 1989. Changes in Stubble Carbohydrate Content During Regrowth of Defoliated Perennial Ryegrass (Lolium perenne L.) on Two Nitrogen Levels. Grass Forage Sci. 44(4):p. 411-415. |
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| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1989.tb01940.x/epdf
Last checked: 10/02/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 197 .B7 |
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